Right now
The most recent data we hold from NOAA arrived 18 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 29 July 2026 at 01:45 UTC. It is kept here as a record.
It is the 4th strongest of the 14 detections recorded within 20 km of this point since 27 May 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 28 at 9:16PM EDT until July 28 at 9:45PM EDT by NWS Newport/Morehead City NC
Nearby, since 27 May 2026
- June 15, 2026 · score 22 · 8.4 km
- September 3, 2026 · score 16 · 13.0 km
- May 27, 2026 · score 22 · 13.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 37.3624, -75.7055 |
| Nearest City | Virginia Beach (62 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-29T01:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.51807b7deec5c79de4e5726a49d1c380 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-29T01:16:00.000Z.
First archived: 2026-07-29T01:28:09.593Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Alligator River; Albemarle Sound; Currituck Sound; Coastal Waters from Cape Charles Light to Virginia-North Carolina border out 20 NM; Coastal waters from NC VA border to Currituck Beach Light NC out 20 NM; Waters from Cape Charles Light to Virginia - North Carolina Border from 20 to 60 NM; Waters from NC VA border to Currituck Beach Light NC from 20 to 60 NM; Chesapeake Bay from Smith Point to Windmill Point VA; Chesapeake Bay from Windmill Point to New Point Comfort VA; Rappahannock River from Urbanna to Windmill Point and 3 more areas |
| Headline | Special Marine Warning issued July 28 at 9:16PM EDT until July 28 at 9:45PM EDT by NWS Newport/Morehead City NC |
| Expires | 2026-07-28T21:45:00-04:00 |
| SenderName | NWS Newport/Morehead City NC |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.51807b7deec5c79de4e5726a49d1c3808bb53315.001.1","noaa_urn:oid:2.49.0.1.840.0.13b7573659932444c6ceaa74827dffc5891b66e2.001.1","noaa_urn:oid:2.49.0.1.840.0.cb05f971b5f91f0f5cc9a65a00e63cebba22c616.001.1","noaa_urn:oid:2.49.0.1.840.0.abbc8a17cc5705e80834aebe63b8a1efcc935b73.001.1","noaa_urn:oid:2.49.0.1.840.0.cfbb8eaf8f69395bb6ae9aae3cbb083ddaae956f.002.1","noaa_urn:oid:2.49.0.1.840.0.3b650f8762a3cc077ffb39cd789ec9420324a2f1.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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